/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesInterface/Public/Online/Sessions.h
struct Params
bool
bPresenceEnabled
Whether this session should be set as the user's new presence session. False by default
FAccountId
LocalAccountId
Id handle for the local user which will perform the action
FOnlineSessionI...
SessionId
Id handle for the session to be joined. To be retrieved via session search, invite or UI operation
FName
SessionName
Local name for the session